To the Greek government: ask as many other firms/experts as you can to prepare similar studies. When completed, put all the proposals on a list and prioritize them. And then implement them step-by-step! If you need to establish a new “Economic Development Ministry” for that purpose, do it but make sure that it is formed with the help of experts and run like an efficient Ministry ought to be run.
To the EU: prod the Greek government that they do the above. Help them to accomplish implemention in whatever form or fashion you can do that. Don’t force them; motivate them! Offer them expert teams. Get middle-market entrepreneurs involved to help the Greeks. Declare it as an EU-priority to assist that the Greek economy can be turned around from a corrupt and crony-driven economy into a value-generating market economy.
When steps like the above are taken, Europeans will start to realize that it is an advantage to have the EU!